PhysSandbox

Balancing Equations

Interactive simulation — adjust parameters and watch the visualization update in real time.

H2+O2→H2O

Not balanced yet. O: Δ = +1 (left − right)

Reactants (atoms)

  • H: 2
  • O: 2

Products (atoms)

  • H: 2
  • O: 1

How it works

Set **integer stoichiometric coefficients** so every element appears in the same count on both sides. Your ratios are compared to the **smallest whole-number** solution. Parentheses in formulas (e.g. **Ca(OH)₂**) are parsed when you build your own practice later — these presets use common exam-style reactions.

Key equations

Σ (νᵢ · atoms in speciesᵢ) equal on reactants and products for each element